11 | Add to Reading ListSource URL: www.nber.orgLanguage: English - Date: 2006-11-15 04:28:07
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12 | Add to Reading ListSource URL: www.childrenandnature.orgLanguage: English - Date: 2013-03-01 23:01:13
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13 | Add to Reading ListSource URL: www.mrrc.isr.umich.eduLanguage: English - Date: 2007-01-24 18:11:24
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14 | Add to Reading ListSource URL: www.mrrc.isr.umich.eduLanguage: English - Date: 2008-10-15 12:43:31
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15 | Add to Reading ListSource URL: cspinet.orgLanguage: English - Date: 2008-10-30 09:49:48
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16 | Add to Reading ListSource URL: www.animal-journal.euLanguage: English - Date: 2014-06-28 10:22:36
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17 | Add to Reading ListSource URL: repository.tamu.eduLanguage: English - Date: 2011-06-21 17:10:18
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